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<div class="titlepage"><div><div><h4 class="title">
<a name="asio.reference.io_context__strand.wrap"></a><a class="link" href="wrap.html" title="io_context::strand::wrap">io_context::strand::wrap</a>
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<p>
          <a class="indexterm" name="asio.indexterm.io_context__strand.wrap"></a> 
(Deprecated:
          Use <a class="link" href="../bind_executor.html" title="bind_executor"><code class="computeroutput">bind_executor</code></a>.)
          Create a new handler that automatically dispatches the wrapped handler
          on the strand.
        </p>
<pre class="programlisting">template&lt;
    typename <a class="link" href="../Handler.html" title="Handlers">Handler</a>&gt;
unspecified wrap(
    Handler handler);
</pre>
<p>
          This function is used to create a new handler function object that, when
          invoked, will automatically pass the wrapped handler to the strand's dispatch
          function.
        </p>
<h6>
<a name="asio.reference.io_context__strand.wrap.h0"></a>
          <span><a name="asio.reference.io_context__strand.wrap.parameters"></a></span><a class="link" href="wrap.html#asio.reference.io_context__strand.wrap.parameters">Parameters</a>
        </h6>
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<p class="title"><b></b></p>
<dl>
<dt><span class="term">handler</span></dt>
<dd>
<p>
                The handler to be wrapped. The strand will make a copy of the handler
                object as required. The function signature of the handler must be:
</p>
<pre class="programlisting">void handler(A1 a1, ... An an);
</pre>
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              </p>
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<h6>
<a name="asio.reference.io_context__strand.wrap.h1"></a>
          <span><a name="asio.reference.io_context__strand.wrap.return_value"></a></span><a class="link" href="wrap.html#asio.reference.io_context__strand.wrap.return_value">Return Value</a>
        </h6>
<p>
          A function object that, when invoked, passes the wrapped handler to the
          strand's dispatch function. Given a function object with the signature:
        </p>
<pre class="programlisting">R f(A1 a1, ... An an);
</pre>
<p>
          If this function object is passed to the wrap function like so:
        </p>
<pre class="programlisting">strand.wrap(f);
</pre>
<p>
          then the return value is a function object with the signature
        </p>
<pre class="programlisting">void g(A1 a1, ... An an);
</pre>
<p>
          that, when invoked, executes code equivalent to:
        </p>
<pre class="programlisting">strand.dispatch(boost::bind(f, a1, ... an));
</pre>
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<td align="right"><div class="copyright-footer">Copyright &#169; 2003-2018 Christopher M. Kohlhoff<p>
        Distributed under the Boost Software License, Version 1.0. (See accompanying
        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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